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Prediction market on polymarket. This market refers to the tennis match between Janae Preston and Kayla Day in the W50 Berkeley, CA, originally scheduled for September 27, 2026 at 3:00PM ET. This market will resolve to "Janae Preston" if Janae Preston wins by 2 or more sets than Kayla Day, based on the final completed score. Otherwise, it will resolve to "Kayla Day." If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the deciding set has begun when the match ends, Janae Preston can no longer win by 2 or more sets, and this market will resolve to "Kayla Day." If the match is canceled before play begins, or a result has not been determined by October 11, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official ITF results.
Resolves: 10/4/2026.